Signum Pro-Poly Plasma has been a popular polyester string, both with our play testers as well as with members of our Talk Tennis message boards (Editor’s note: It was at the request of our Talk Tennis members that we tried Signum strings and added them to stock). Signum Pro’s Hyperion 17 is one of Signum’s newest co-polyester strings, designed to provide the exceptional playability of Poly Plasma along with some added crispness and comfort.
When stringing Hyperion it felt fairly similar to the Poly Plasma, with a slightly firmer feel. It was relatively easy to string compared to others polys on the market, as it did not tangle much nor was it extremely stiff.
The first impression I had of Hyperion was it made for a lively stringbed and a crisp feel. With this string, the ball explodes off the stringbed, which was a nice surprise as co-polys tend to have more of a dead feel to them. There was also excellent control and the tension was maintained nicely throughout the string life.
The main characteristics that stood out to me while hitting with Hyperion was the crispness and liveliness of the stringbed and the great control I had on all my shots. It was extremely comfortable to hit. I could really feel the ball grab the strings, then be released off the stringbed nicely. Even with the lively feel, I did not lose control, as would normally be the case. I was able to place the ball extremely well, and not lose accuracy, which is what typically happens when I find such a lively feel.
I was not able to generate as much power and pop as I would normally with my regular hybrid string job of Luxilon ALU Power mains with Wilson NXT crosses, nor was I able to generate as much spin. The string still maintained a nice amount of control. However, I like to feel that I have the ability to crack a mid-court ball and put it away, or be able to generate ample spin on a defensive ball so I can take a full swing and still bring it back into the court and I lost a little of both with Hyperion 17.
Overall, I had a nice experience hitting with Hyperion 17. Though the life span was short (I broke it on my third day of hitting), it was a really nice feeling co-poly string. Signum places this string in its performance group of strings, and with its playability, tension maintenance, and control, Hyperion has a lot to offer.